BLACK CANYON
OperatingHydro power plant
- Capacity
- 10 MW
- Primary fuel
- Hydro
- County
- Gem County
- Operator
- U S BUREAU OF RECLAMATION
- Status
- Operating
- Commissioned
- 1925
- EIA plant ID
- 6396
- Coordinates
- 43.9305, -116.4373
BLACK CANYON, a 10 MW Hydro power plant in Gem County, Idaho. Operated by U S BUREAU OF RECLAMATION, commissioned 1925.
Weather peril exposure
BLACK CANYON is a 10 MW hydro power plant in Gem County, ID, operated by U S BUREAU OF RECLAMATION, commissioned in 1925. Gem County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.9 of 5 at the 23rd national percentile. Wildfire is the leading peril, rated Relatively Moderate by FEMA at the 99th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Gem County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 99th | 5.0 of 5 | 0.02 |
| Riverine flooding | Relatively Low | 83rd | 4.3 of 5 | 0.36 |
| Earthquake | Very Low | 74th | 4.0 of 5 | <0.01 |
| Heat wave | Relatively Low | 62nd | 3.5 of 5 | 3.5 |
| Hail | Very Low | 14th | 1.6 of 5 | 0.23 |
| Lightning | Very Low | 13th | 1.5 of 5 | 20.9 |
| Tornado | Very Low | 9th | 1.3 of 5 | 0.03 |
| Ice storm | Very Low | 7th | 1.3 of 5 | 0.04 |
| Strong wind | Relatively Low | 4th | 1.2 of 5 | 0.32 |
| Winter weather | Relatively Low | 3rd | 1.1 of 5 | 11.8 |
Perils not assessed in Gem County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Gem County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.